Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A display, comprising: a substrate; a plurality of inorganic light-emitting diodes disposed exclusively on and in contact with the substrate; and a plurality of touch sensors exclusively on and in contact with the substrate, wherein the plurality of inorganic light-emitting diodes and the plurality of touch sensors are disposed on a common surface of the substrate, wherein the touch sensors are interspersed between the inorganic light-emitting diodes over the substrate, and wherein each touch sensor comprises a control circuit for controlling the touch sensor and the control circuits are interspersed between the inorganic light-emitting diodes over the substrate.
A display screen combines light emission and touch sensing on a single substrate. Inorganic LEDs provide the display, and touch sensors are placed directly on the same surface, interspersed among the LEDs. Each touch sensor includes its own control circuit, also interspersed among the LEDs. Both LEDs and touch sensors are in direct contact with the substrate.
2. The display of claim 1 , comprising: a system controller; and a plurality of touch controller circuits, each touch controller circuit associated with a touch sensor and disposed on the substrate for providing one or more sensor-control signals to the touch sensor and for receiving a sense signal responsive to the one or more sensor-control signals from the touch sensor, wherein each touch sensor operates independently of any other touch sensor of the plurality of touch elements, each touch controller circuit and associated touch sensor forming a touch element.
The display system features a central system controller that coordinates the touch sensing. Each touch sensor has its own dedicated touch controller circuit, both located on the substrate. The controller sends signals to its touch sensor and receives response signals back. Each touch sensor and its associated controller form a self-contained touch element that operates independently from all other touch elements on the screen.
3. The display of claim 2 , wherein the touch sensor is a capacitive touch sensor and comprises one or more capacitors, each of the one or more capacitors connected to the touch controller circuit of the respective touch element.
The display, which includes a substrate, inorganic light-emitting diodes on the substrate, and touch sensors on the substrate interspersed with the LEDs, uses capacitive touch sensors. Each capacitive touch sensor incorporates one or more capacitors directly connected to the sensor's controller circuit (the controller is also on the substrate). The controller provides signals to the sensor, and the sensor communicates back.
4. The display of claim 3 , wherein the one or more capacitors are formed on the substrate.
The display, which includes a substrate, inorganic light-emitting diodes on the substrate, and touch sensors on the substrate interspersed with the LEDs, uses capacitive touch sensors. The capacitors that comprise each capacitive touch sensor are physically fabricated directly on the same substrate as the LEDs and controller circuits.
5. The display of claim 3 , wherein the touch sensor is a self-capacitive touch sensor.
The display, which includes a substrate, inorganic light-emitting diodes on the substrate, and touch sensors on the substrate interspersed with the LEDs, uses self-capacitive touch sensors. This means each touch sensor measures its own capacitance relative to ground to detect touch events, instead of measuring capacitance between two electrodes.
6. The display of claim 3 , wherein the touch sensor is a mutual-capacitive touch sensor having at least two electrical conductors.
The display, which includes a substrate, inorganic light-emitting diodes on the substrate, and touch sensors on the substrate interspersed with the LEDs, uses mutual-capacitive touch sensors. These sensors have at least two conductive elements, and touch is detected by measuring changes in capacitance between these elements.
7. The display of claim 2 , wherein the touch sensor is a capacitive touch sensor, an optical touch sensor, an acoustic touch sensor, an inductive touch sensor, a piezo-electric sensor, or a resistive touch sensor.
The display system features a central system controller and dedicated touch controller circuits for each touch sensor. The touch sensors can be implemented using various technologies, including capacitive, optical, acoustic (e.g., surface acoustic wave), inductive, piezo-electric, or resistive sensing. All these sensors are capable of detecting touch events on the display.
8. The display of claim 2 , wherein the substrate is a backplane substrate and the touch controller circuits are formed in or on one or more touch substrates different from the backplane substrate and the touch substrates are disposed on the backplane substrate, or wherein the substrate is a backplane substrate and the touch controller circuits are formed in or on the backplane substrate.
The display has touch controller circuits that can be formed in two ways. Either the substrate acts as a backplane, with separate "touch substrates" holding the controller circuits placed on top. Or, the touch controller circuits are directly integrated into or onto the backplane substrate itself, simplifying the assembly process.
9. The display of claim 1 , wherein the touch sensor is a capacitive touch sensor, an optical touch sensor, an acoustic touch sensor, an inductive touch sensor, a piezo-electric sensor, or a resistive touch sensor.
In the display with inorganic LEDs and touch sensors on a common substrate, the touch sensors can be implemented using various technologies, including capacitive, optical, acoustic (e.g., surface acoustic wave), inductive, piezo-electric, or resistive sensing. Each touch sensor type is capable of detecting touch events on the display surface.
10. The display of claim 1 , wherein the touch sensor is an optical touch sensor and the optical touch sensor comprises a light-sensitive semiconductor diode.
In the display with inorganic LEDs and touch sensors on a common substrate, the touch sensors are optical. These optical touch sensors utilize light-sensitive semiconductor diodes to detect touch events by sensing changes in light.
11. The display of claim 1 , wherein the area over the substrate of each touch sensor is larger than the area over the substrate of each inorganic light-emitting diode.
In the display with inorganic LEDs and touch sensors on a common substrate, each touch sensor occupies a larger surface area on the substrate compared to each individual inorganic light-emitting diode. The touch sensing area is larger than the light-emitting area.
12. The display of claim 1 , wherein the substrate is a backplane substrate and the control circuits are formed in or on one or more touch substrates different from the backplane substrate and the touch substrates are disposed on the backplane substrate, or wherein the substrate is a backplane substrate and the control circuits are formed in or on the backplane substrate.
In the display where inorganic light-emitting diodes and control circuits are located on a backplane substrate, the control circuits for the touch sensors can be arranged in two different ways. They can either be formed on separate "touch substrates" that are then placed on the backplane substrate, or they can be directly formed on the backplane substrate itself.
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October 24, 2017
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